.bpm-analyzer {
  width: 100%;
}

.file-input-wrapper {
  margin-bottom: 20px;
}

.file-input {
  width: 100%;
  padding: 15px;
  border: 2px dashed #667eea;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s ease;
  background: white;
}

.file-input:hover:not(:disabled) {
  border-color: #764ba2;
  background: #f8f9ff;
}

.file-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status {
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-size: 14px;
  text-align: center;
}

.status.analyzing {
  background: #fff3cd;
  color: #856404;
  border: 1px solid #ffeaa7;
}

.status.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.status.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.bpm-display {
  text-align: center;
  padding: 30px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 15px;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.5s ease;
}

.bpm-display.visible {
  opacity: 1;
  transform: translateY(0);
}

.bpm-value {
  font-size: 64px;
  font-weight: bold;
  color: white;
  margin-bottom: 5px;
}

.bpm-label {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 2px;
}
